Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of MONDAY: JANUARY 14 , 2008
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 9.5 10.1 94 16.0 12.4 129
COTTONWOOD CREEK 7670 11.0 11.7 94 14.0 16.0 88
GRAND TARGHEE 9260 26.6 -M * 19.9 -M *
GRANITE CREEK 6770 8.3 9.6 86 14.1 11.4 124
GRASSY LAKE 7265 15.9 18.2 87 23.9 20.9 114
GROS VENTRE SUMMIT 8750 7.6 8.1 94 8.9 7.4 120
GUNSIGHT PASS 9820 5.0 -M * 8.8 -M *
LEWIS LAKE DIVIDE 7850 16.6 18.2 91 22.9 20.9 110
PHILLIPS BENCH 8200 14.7 15.1 97 18.8 16.2 116
SALT RIVER SUMMIT 7760 5.3 6.9 77 7.6 10.7 71
SNAKE RIVER STATION 6920 8.4 9.8 86 16.3 13.0 125
SPRING CREEK DIVIDE 9000 10.9 14.6 75 11.8 15.6 76
THUMB DIVIDE 7980 8.1 9.3 87 11.7 10.8 108
TOGWOTEE PASS 9580 15.7 13.9 113 17.5 14.2 123
TWO OCEAN PLATEAU 9240 20.8 15.8 132 18.7 15.7 119
WILLOW CREEK 8380 14.7 16.9 87 20.4 18.4 111
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Basin wide percent of average 94 109
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 14.3 13.7 104 13.7 11.7 117
BLACK BEAR 8170 24.7 21.1 117 25.5 21.4 119
CANYON 7870 8.8 7.5 117 12.0 9.1 132
FISHER CREEK 9100 23.7 19.9 119 -M 20.5 *
MADISON PLATEAU 7750 15.0 13.6 110 18.7 14.5 129
NORTHEAST ENTRANCE 7350 3.7 6.3 59 7.9 7.5 105
PARKER PEAK 9400 14.1 12.5 113 13.6 9.4 145
SYLVAN LAKE 8420 11.1 12.6 88 15.7 12.6 125
THUMB DIVIDE 7980 8.1 9.3 87 11.7 10.8 108
TWO OCEAN PLATEAU 9240 20.8 15.8 132 18.7 15.7 119
WHISKEY CREEK 6800 9.1 9.1 100 15.1 11.7 129
WHITE MILL 8700 14.8 13.5 110 -M 15.2 *
WOLVERINE 7650 4.4 7.1 62 8.0 8.0 100
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Basin wide percent of average 107 121
WIND RIVER
BURROUGHS CREEK 8750 9.2 8.5 108 11.9 9.5 125
COLD SPRINGS 9630 3.0 5.2 58 5.9 6.4 92
DEER PARK 9700 7.4 9.1 81 11.0 12.5 88
HOBBS PARK 10100 6.3 8.7 72 7.5 7.2 104
LITTLE WARM 9370 5.1 6.5 78 8.0 7.9 101
SOUTH PASS 9040 6.4 9.6 67 9.3 10.4 89
ST. LAWRENCE ALT 8620 2.8 4.3 65 4.7 5.0 94
TOGWOTEE PASS 9580 15.7 13.9 113 17.5 14.2 123
TOWNSEND CREEK 8700 3.3 5.0 66 6.5 6.6 98
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Basin wide percent of average 84 103
BIGHORN BASIN
BALD MTN. 9380 8.1 11.6 70 8.9 10.0 89
BEAR TRAP MEADOW 8200 4.7 3.0 157 5.7 4.9 116
BLACKWATER 9780 13.6 14.0 97 13.1 12.2 107
BONE SPRINGS DIV 9350 7.9 9.2 86 10.8 8.3 130
EVENING STAR 9200 15.7 16.6 95 18.9 15.1 125
GRAVE SPRINGS 8550 4.1 4.9 84 5.5 5.6 98
KIRWIN 9550 7.5 6.8 110 8.9 6.7 133
MARQUETTE 8760 1.7 5.3 32 5.9 5.7 104
MIDDLE POWDER 7760 4.8 6.2 77 5.2 7.4 70
OWL CREEK 8975 2.8 3.0 93 4.4 3.2 138
POWDER RIVER PASS 9480 6.1 6.2 98 8.1 7.0 116
SHELL CREEK 9580 8.6 8.5 101 8.9 7.8 114
SYLVAN LAKE 8420 11.1 12.6 88 15.7 12.6 125
SYLVAN ROAD 7120 5.5 7.5 73 13.5 11.6 116
TIMBER CREEK 7950 1.6 3.3 48 5.4 4.0 135
YOUNTS PEAK 8350 9.2 9.7 95 11.4 9.7 118
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Basin wide percent of average 88 114
SHOSHONE RIVER
BLACKWATER 9780 13.6 14.0 97 13.1 12.2 107
EVENING STAR 9200 15.7 16.6 95 18.9 15.1 125
KIRWIN 9550 7.5 6.8 110 8.9 6.7 133
MARQUETTE 8760 1.7 5.3 32 5.9 5.7 104
SYLVAN LAKE 8420 11.1 12.6 88 15.7 12.6 125
SYLVAN ROAD 7120 5.5 7.5 73 13.5 11.6 116
YOUNTS PEAK 8350 9.2 9.7 95 11.4 9.7 118
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Basin wide percent of average 89 119
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.7 3.0 157 5.7 4.9 116
BIG GOOSE 7990 4.2 5.1 82 7.1 4.8 148
BONE SPRINGS DIV 9350 7.9 9.2 86 10.8 8.3 130
BURGESS JUNCTION 7880 5.1 6.3 81 7.2 6.9 104
CLOUD PEAK RESERVOIR 9860 7.1 6.8 104 8.2 7.2 114
DOME LAKE 8880 5.2 6.9 75 8.5 7.7 110
GRAVE SPRINGS 8550 4.1 4.9 84 5.5 5.6 98
HANSEN SAWMILL 8360 3.5 3.7 95 5.5 4.7 117
MIDDLE POWDER 7760 4.8 6.2 77 5.2 7.4 70
POWDER RIVER PASS 9480 6.1 6.2 98 8.1 7.0 116
SUCKER CREEK 8880 5.9 6.1 97 7.6 7.6 100
TIE CREEK 6870 2.3 3.5 66 6.3 5.8 109
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Basin wide percent of average 90 110
BELLE FOURCHE
BLIND PARK 6890 2.4 4.4 55 4.7 6.9 68
COLE CANYON 5910 1.9 3.8 50 3.3 4.2 79
NORTH RAPID CREEK 6130 3.2 4.0 80 3.7 5.7 65
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Basin wide percent of average 61 70
UPPER N. PLATTE RIVER
COLUMBINE 9160 12.1 12.6 96 14.9 13.8 108
DIVIDE PEAK 8880 12.6 10.9 116 13.1 11.7 112
ELK RIVER 8700 11.3 9.3 122 13.1 10.6 124
JOE WRIGHT 10120 12.3 11.4 108 14.9 13.8 108
NORTH FRENCH CREEK 10130 17.0 15.6 109 17.5 14.0 125
OLD BATTLE 10000 16.7 16.8 99 20.3 18.9 107
SAGE CREEK BASIN 7850 9.1 6.3 144 10.4 6.8 153
SOUTH BRUSH CREEK 8440 7.0 6.1 115 10.4 9.1 114
TOWER 10500 20.7 24.5 84 21.8 21.2 103
WEBBER SPRINGS 9250 12.6 13.3 95 15.7 15.4 102
WILLOW CREEK PASS 9540 8.5 6.4 133 9.5 7.2 132
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Basin wide percent of average 105 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 10.9 12.8 85 12.0 12.0 100
CASPER MTN. 7900 5.1 7.8 65 7.9 7.9 100
DEADMAN HILL 10220 9.1 8.9 102 9.4 9.0 104
DEER PARK 9700 7.4 9.1 81 11.0 12.5 88
LAPRELE CREEK 8375 2.5 6.2 40 5.2 7.1 73
RENO HILL 8400 5.5 7.4 74 7.5 8.1 93
ROACH 9700 10.7 8.8 122 12.9 9.9 130
SAND LAKE 10050 14.4 17.1 84 14.8 13.6 109
SOUTH PASS 9040 6.4 9.6 67 9.3 10.4 89
WINDY PEAK 7900 3.5 3.9 90 5.0 6.2 81
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Basin wide percent of average 82 98
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.7 5.7 135 9.9 8.4 118
DIVIDE PEAK 8880 12.6 10.9 116 13.1 11.7 112
OLD BATTLE 10000 16.7 16.8 99 20.3 18.9 107
SANDSTONE RS 8150 8.2 7.1 115 11.7 10.5 111
WHISKEY PARK 8950 15.0 14.2 106 19.1 16.1 119
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Basin wide percent of average 110 113
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.7 8.0 84 7.2 7.6 95
BLIND BULL SUM 8650 12.0 15.5 77 10.4 13.1 79
EAST RIM DIVIDE 7930 3.7 7.0 53 6.2 6.8 91
ELKHART PARK G.S. 9400 5.5 7.4 74 6.7 7.7 87
GROS VENTRE SUMMIT 8750 7.6 8.1 94 8.9 7.4 120
GUNSIGHT PASS 9820 5.0 -M * 8.8 -M *
KENDALL R.S. 7740 5.1 8.1 63 7.4 8.2 90
LOOMIS PARK 8240 7.5 9.4 80 9.2 9.9 93
NEW FORK LAKE 8340 4.5 6.4 70 5.4 6.8 79
SNIDER BASIN 8060 5.2 8.1 64 6.8 9.4 72
SPRING CREEK DIVIDE 9000 10.9 14.6 75 11.8 15.6 76
TRIPLE PEAK 8500 11.1 13.9 80 14.3 13.5 106
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Basin wide percent of average 75 89
LOWER GREEN RIVER
HAMS FORK 7840 4.6 6.7 69 5.3 7.0 76
HEWINTA 9519 4.8 5.2 92 9.6 7.9 122
HICKERSON PARK 9145 2.6 3.5 74 5.2 4.6 113
HOLE-IN-ROCK 9150 2.2 3.2 69 5.6 4.2 133
INDIAN CREEK 9425 10.5 14.7 71 10.2 14.3 71
KELLEY R.S. 8180 6.5 8.9 73 9.1 11.9 76
STEEL CREEK PARK 10200 6.6 7.8 85 10.7 8.6 124
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Basin wide percent of average 76 95
UPPER BEAR RIVER
BUG LAKE 7950 7.7 10.4 74 8.7 10.8 81
HAYDEN FORK 9212 8.8 7.8 113 12.2 11.6 105
KELLEY R.S. 8180 6.5 8.9 73 9.1 11.9 76
LILY LAKE 9156 6.5 6.6 98 9.6 9.8 98
MONTE CRISTO 8960 13.6 14.0 97 14.5 14.1 103
SALT RIVER SUMMIT 7760 5.3 6.9 77 7.6 10.7 71
TRIAL LAKE 9992 9.1 12.6 72 12.7 13.3 95
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Basin wide percent of average 86 91
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
If the Basin wide percent of average value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the average value for those sites on this day.
Contact your state water supply staff for assistance.
Reference period for average conditions is 1961-90.
Provisional data, subject to revision.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.